Answer this question truthfully
### Question: What are the symptoms of Vitamin B12 deficiency?
### Response: People with mild anemia may have no symptoms, or symptoms may be very mild.
More typical symptoms of vitamin B12 deficiency anemia include:
Diarrhea or constipation Fatigue, lack of energy, or light-headedness when standing up or with exertion Loss of appetite Pale skin Problems concentrating Shortness of breath, mostly during exercise Swollen, red tongue or bleeding gums
Symptoms from nerve damage caused by vitamin B12 deficiency that has been present for a longer time include:
Confusion or change in mental status (dementia) in severe cases Depression Loss of balance Numbness and tingling of hands and feet